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Class Information
Number: 323/280
Name: Electricity: power supply or regulation systems > Output level responsive > Using a three or more terminal semiconductive device as the final control device > Linearly acting > With a specific feedback amplifier (e.g., integrator, summer)
Description: Subject matter including a signal processing circuit between the means responsive to the output level and the final control device, the signal processing circuit including an amplifier in a feedback path, the amplifier including such elements as cascaded stages, summing junctions, or additional feedback circuitry.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
5654628 Circuit configuration for generating a controlled output voltage Aug. 5, 1997
5648718 Voltage regulator with load pole stabilization Jul. 15, 1997
5637992 Voltage regulator with load pole stabilization Jun. 10, 1997
5625278 Ultra-low drop-out monolithic voltage regulator Apr. 29, 1997
5619126 Circuit arrangement for automatically decreasing the load current Apr. 8, 1997
5608313 Circuit arrangement for generating a constant output voltage Mar. 4, 1997
5598123 Filter arrangement for suppressing an AC voltage superposed on a DC voltage present across poles of a DC voltage source Jan. 28, 1997
5578960 Direct-current stabilizer Nov. 26, 1996
5559424 Voltage regulator having improved stability Sep. 24, 1996
5559423 Voltage regulator including a linear transconductance amplifier Sep. 24, 1996
5550461 System for operating a plurality of power supply modules in parallel Aug. 27, 1996
5548205 Method and circuit for control of saturation current in voltage regulators Aug. 20, 1996
RE35261 Differential input amplifier stage with frequency compensation Jun. 4, 1996
5515260 Current-voltage conversion circuit, current compressing and extension circuit, automatic exposure control system, and automatic exposure control system with built-in sensor May. 7, 1996
5512814 Voltage regulator incorporating configurable feedback and source follower outputs Apr. 30, 1996
5506494 Resistor circuit with reduced temperature coefficient of resistance Apr. 9, 1996
5502369 Stabilized direct current power supply Mar. 26, 1996
5485109 Error signal generation circuit for low dropout regulators Jan. 16, 1996
5455503 Low power switching supply circuits and methods Oct. 3, 1995
5446380 Monolithic integrated voltage regulator Aug. 29, 1995
5408172 Step-down circuit for power supply voltage capable of making a quick response to an increase in load current Apr. 18, 1995
5400385 High voltage power supply for an X-ray tube Mar. 21, 1995
5397978 Current limit circuit for IGBT spark drive applications Mar. 14, 1995
5387822 Error signal isolator circuit Feb. 7, 1995
5381082 High-speed, fully-isolated current source/sink Jan. 10, 1995
5334928 Frequency compensation circuit for low dropout regulators Aug. 2, 1994
5302888 CMOS integrated mid-supply voltage generator Apr. 12, 1994
5298869 Constant current and constant voltage regulating circuit for common-gate or common-base transistor devices Mar. 29, 1994
5283514 Fast response current regulator for DC power supply Feb. 1, 1994
5280233 Low-drop voltage regulator Jan. 18, 1994
5274323 Control circuit for low dropout regulator Dec. 28, 1993
5262712 Power supply selectively providing series and parallel regulation Nov. 16, 1993
5225766 High impedance current source Jul. 6, 1993
5194802 Transconductance current regulator using precisely sampled charges for current control Mar. 16, 1993
5191278 High bandwidth low dropout linear regulator Mar. 2, 1993
5182526 Differential input amplifier stage with frequency compensation Jan. 26, 1993
5160928 System for regulating the mean current flowing through the load of an electric remote control device Nov. 3, 1992
5153499 Precision voltage controlled current source with variable compliance Oct. 6, 1992
5146152 Circuit for generating internal supply voltage Sep. 8, 1992
5130635 Voltage regulator having bias current control circuit Jul. 14, 1992
5124631 Voltage regulator Jun. 23, 1992
5122730 Voltage divider for a wide band domino effect high voltage regulator Jun. 16, 1992
5105145 Voltage control circuit Apr. 14, 1992
5097198 Variable power supply with predetermined temperature coefficient Mar. 17, 1992
5084668 System for sensing and/or controlling the level of current in a transistor Jan. 28, 1992
5077518 Source voltage control circuit Dec. 31, 1991
5043730 Digital-analog conversion circuit with application of voltage biasing for distortion stabilization Aug. 27, 1991
5023541 Power supply control circuit having constant voltage and constant current modes Jun. 11, 1991
5021937 Maximum duty cycle limiting of pulse width modulators Jun. 4, 1991
5010292 Voltage regulator with reduced semiconductor power dissipation Apr. 23, 1991

1 2 3 4 5 6 7 8 9 10 11










 
 
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